Wow, cool! That would have helped this weekend. I took two friends down a mountain bike trail this weekend, and one of them was walking the bike through a steep rocky section, and he tripped. Did a face plant on hard ground! Got a bloody nose and abrasions and bruises from forehead to chin. I think his helmet at least saved his forehead from worse damage.

I'm partial to real helmets. These collars would be too warm in summer, and in winter I want something on my head (I even tape up my holes in the helmet these days biking to work, 8F wind chill this morning...)

here's one I just found, although not really current news any longer, just cool to look at:

Same guy shot this test footage a few hours earlier, which is the cooler video - the temperatures went way up for the shuttle landing above, but here it is just perfect. I'm sucker for long lens slo motion shots